Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5034157 | Injection moldable composite | Gerald Rogers | 1991-07-23 |
| D302394 | Electromechanical pressure differential gauge/switch | — | 1989-07-25 |
| 4194195 | Portable liquid level maintenance monitor system for vehicles | James H. Koegel | 1980-03-18 |